Perhaps you should try some spelling variations:
chen yong » chen rong, chen yang, zhen yong
yang y.ci » yang yi
yang y.c » yang yi, yang yao, yang 4.3
yong did » long did, dong di, yong kim
did hong » kia hong, tin hong, min hong
yi chen » jui chen
hong yu » wong yue
ang y » ang _
y yi » _ yi, y y, 4 yi

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang y.c) OR (yang y.ci))ang y yi chen yong did hong yu ;~.
• Adding a wildcard symbol may retrieve word variants: ((yang y.c) or (yang y.ci))ang y yi chen yong did hong yu ;*.